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	<TITLE>Gas-Cash-Dash Mockup v6</TITLE>
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<H1><FONT COLOR="#800000">Notes on Gas-Cash-Dash, version 6</FONT></H1>
<P>Specs:</P>


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	<P>Gas Dispenser (Pump)</P>
	<P>ATM: cash kept in secure box, detects when empty</P>
	<P>Card Reader: detects card inserted and card removed</P>
	<P>Receipt Slot, may know when receipt has been taken</P>
	<P>Cash Dispenser: detects cash removed</P>
	<P>Bitmapped Display 640 X 480</P>
	<P>Key Pad: numbers, OK, Cancel, Credit, Debit</P>
	<P>4 Menu buttons on right edge of screen</P>
	<P>Lottery Form Scanner: reads both the tckt and the rcpt, detects form inserted and form removed</P>
	<P>Lottery ticket box: secure box to store redeemed winning tickets</P>
	<P>3 Different gas grade buttons + small displays for prices</P>

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<P>Classes of User:</P>


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	<P>Customers</P>
	<P>Guy who installs pump</P>
	<P>Attendent</P>

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Fns:</P>


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	<P>Buy Gas</P>
	<P>W/draw cash (quick cash is imp. case)</P>
	<P>Buy Lotto Tickets, Redeem winning tickets</P>
	<P>Transfers?</P>
	<P>Balance Enquiries?</P>
	<P>Buy Car Wash (Optional)</P>
	<P>Show ads on the screen

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Reqr.:</P>


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	<P>You need to buy gas before you can access nay other fns</P>
	<P>Service time should be minimized by doing all sales while pump is going - minimize critical path interactions</P>
	<P>Security of unattended pump - no w/drawl should be allowed from someone else's acct, require additional card
	dip to confirm each transation.</P>

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<P>Issues:</P>


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	<P>Want priorities on certain activities - common Vs Dangerous (Fast cash should be fewer interactions whereas
	Lotto should take more interactions)</P>
	<P>Should non-gas sales at the end of session or during gas pumping? During gas pumping to save time.</P>
	<P>Soft button vs Physical button (for Fast Cash): 4 unlabeled soft buttons at left of screen.</P>
	<P>Car wash may be free/discounted depending on amt of gas: not modeled in mockup.</P>
	<P>By asking to dip card for every ATM trans., you are asking the user to enter the PIN so many times. Just dip
	same card, no need to reenter PIN.</P>
	<P>Most choices involve the first two unlabeled buttons. Will these buttons wear out too soon?</P>

	<P>In some cases there are screens that advise the customer of a fact (e.g., your ticket is not a winner) it should
	be easy to continue from these screens. Both [OK] and [Cancel] and [TimeOut] should continue.
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